Best Practices for Maintaining and Preserving Fristam Twin Screw Pumps
September 20, 2025
In today's super-competitive processing industries like food & beverage, pharmaceuticals, and biotechnology, equipment reliability and cleanliness are not optional. One of the most vital assets in these processes are twin screw pumps, which are prized for their precision handling of viscous, sensitive, and even gas-charged liquids.
Fristam's FDS Nano Twin Screw Pump and the heavy-duty FDS - Double Screw Pump are industry-renowned products, recognized by their remarkable performance, sanitary design, and minimal maintenance requirements. But even the most expertly designed pump needs to be well-maintained in order to ensure its performance and prolong its lifespan.
In this blog, we outline our best practices in the maintenance and preservation of Fristam’s Twin Screw Pumps to ensure that you get the most from your investment and keep your operations up and running.
Why Regular Maintenance Is Important
Regular twin screw pump maintenance is crucial to consistent performance, product quality, and preventing expensive downtime. Regular maintenance prevents premature wear, maintains hygiene, and defends your production schedule. Taking care of your Firstam pump ensures that you can:- Prolong equipment life and lower total cost of ownership.
- Ensure high centrifugal pump performance and flow stability.
- Prevent product contamination and maintain compliance with hygiene regulations.
- Minimise the likelihood of sudden breakage and losses in production.
Understand Key Screw Pump Components
In order to keep your pump in good condition, it's critical to familiarize yourself with the primary screw pump components, which are:- Feed Screws: The precisely engineered screws that propel the product through the pump.
- Shaft Seals: Critical for preventing leaks and maintaining hygiene.
- Bearings: Enable smooth, stable rotation of the screws.
- Lubrication System: Keeps moving parts running without friction or overheating.
- Barrier and Quench Fluids (if equipped): Protect seals and improve hygiene.
Best Practices for Maintenance
1. Follow the Maintenance Schedule- Follow the specified intervals for maintenance, oil change, and replacement of parts.
- Replace oil annually or after 4,000 hours of use (every 2,000 hours in extreme conditions).
- Inspect seals, bearings, and gap sizes at specified intervals.
- Inspect the barrier and quench fluids if your system includes them.
- Turn off and lock the motor.
- Use proper personal protective equipment.
- Shut off all valves and drain the pump fully to avoid spills and contamination.
- Always order parts through Fristam or authorized partners.
- Reference your pump’s serial number to get the correct components.
- Monitor oil levels regularly and refill as needed.
- Change oil at scheduled intervals and fill with the recommended grade.
- Dispose of used oil properly and prevent contamination.
- Maintain barrier fluid pressure within the levels specified.
- Keep the fluid temperature under 70°C to ensure effectiveness.
- Change the fluid when it has become contaminated or has overheated.
- Replace seals at the first instance of leakage or fluid mixing.
- Adhere to Fristam's installation practices for accurate alignment and fit.
- Feed screws are assigned to individual shafts, so do not interchange them.
- Note and follow the markings for correct installation.
- Tighten screws to the recommended torque for proper alignment.
Common Problems to Monitor
Preventive monitoring identifies potential issues before they become major problems:- Inconsistent or inadequate flow.
- High noise or vibration.
- Gearbox or bearing overheating.
- Product leakage from seals.